1. Smartwatches
  2. Smartband
  3. Fitbit Flex 2

Fitbit Flex 2

Fitbit Flex 2
Brand: Fitbit
Category: Smartband
  • Processor: -
  • Operating System: Proprietary OS
  • Display: LED display with 5 indicator lights
  • RAM: 7 days of detailed motion data
  • Battery: 5 days of Battery life Lithium-polymer
  • Sensors: 3-axis accelerometer

Design – I was surprised when Fitbit released the Flex 2 smartband, to be honest I am not a fan of this type of smartband, a smart band without any screen display just like the first Flex. Anyways there are some who would choose to have a smartband that is somewhat hidden from the crowd, a smartband that is more like a regular band.

The small tracker 31.7 x8.9 x 6.8 mm in size is embedded to the smartband and it is removable, the design make it sure that the tracker will stick with the band and won’t fall off, and of course this design and purpose do have a trade in, it will be hard for a user to change it to other band. But if you are contented with your strap band no need to worry in this area.  The Flex 2 smartband is waterproof, up to 50 meters, Fitbit even recommend the use of Fitbit Flex 2 in swimming, with even app stats record support for it in Fitbit app.

Under the Hood – under that small body, Fitbit was able to load it with a lot of features especially in fitness and health category,  the smart band is loaded with all day activity tracking, a smart track, auto sleep tracking, call & text notifications and a 5 day life with its Lithium-polymer battery. The smartband is also loaded with 3 axis accelerometer and a vibration motor.


Form Factor

Design Rectangle


Screen Size LED lights
Display Type LED
Screen Resolution LED display with 5 indicator lights
Touch Type No


Size 31.7 x8.9 x 6.8 mm
Weight 0.83 oz
Casing elastomer material, surgical-grade stainless steel clasp, Plastic Casing


OS Platform Proprietary OS




Internal Storage 7 days of detailed motion data
Card Slot none


SIM Slot none
WIFI none
NFC none
Bluetooth Bluetooth 4.0
USB none


Battery Capacity 5 days of Battery life Lithium-polymer
Charging Technology Small Charging Cradle, contact charging method

Body Resistance

Body Protection Waterproof up to 50 meters
Glass Technology -


Sensors/Functions 3-axis accelerometer




Camera Type none


Features Call and Text notifications, SmartTrack-auto exercise recognition, sedentary reminder, swim proof with support for swimming app, auto sleep tracking

Other Details

Other Details Interchangeable smart band, Vibration motor

Package Contents

Package Contents Removable Fitbit Flex 2 tracker, Classic wristbands (small and large)
Charging cable

Color Availability

Colors Magenta, Navy, Lavender


[World Premiere ] Ticwatch GTH Fitness Smartwatch Men/Women Monitor Skin Temperature Oxygen Sleep Tracking Waterproof Swim

Device Finder

Copyright SmartwatchSpecifications.com 2021